損保そんぽジャパンMeanings1nounSompo Japan Insurance (abbr)company nameAbbreviation of 損害保険ジャパン, a major Japanese non-life insurance company.損保そんぽジャパンは国こく内ない最さい大だい級きゅうの損そん害がい保ほ険けん会がい社しゃです。Sompo Japan Insurance is one of the largest non-life insurance companies in Japan.